/*******************************************************************************
*Copyright (c) 2009 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, only version 3 of the License.
*
*
* This file is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Please contact Eucalyptus Systems, Inc., 130 Castilian
* Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/>
* if you need additional information or have any questions.
*
* This file may incorporate work covered under the following copyright and
* permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms, with
* or without modification, are permitted provided that the following
* conditions are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. USERS OF
* THIS SOFTWARE ACKNOWLEDGE THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE
* LICENSED MATERIAL, COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS
* SOFTWARE, AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, SANTA
* BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, WHICH IN
* THE REGENTS’ DISCRETION MAY INCLUDE, WITHOUT LIMITATION, REPLACEMENT
* OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO IDENTIFIED, OR
* WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT NEEDED TO COMPLY WITH
* ANY SUCH LICENSES OR RIGHTS.
*******************************************************************************/
/*
* Author: chris grzegorczyk <grze@eucalyptus.com>
*/
package com.eucalyptus.ws.handlers;
import java.util.Map;
import org.apache.commons.io.output.ByteArrayOutputStream;
import org.apache.log4j.Logger;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelPipelineCoverage;
import org.jboss.netty.channel.MessageEvent;
import com.eucalyptus.auth.Users;
import com.eucalyptus.auth.crypto.Hmac;
import com.eucalyptus.auth.login.AuthenticationException;
import com.eucalyptus.auth.login.HmacCredentials;
import com.eucalyptus.auth.login.SecurityContext;
import com.eucalyptus.auth.util.SecurityParameter;
import com.eucalyptus.http.MappingHttpRequest;
import com.eucalyptus.ws.server.EucalyptusQueryPipeline.RequiredQueryParams;
@ChannelPipelineCoverage( "one" )
public class HmacHandler extends MessageStackHandler {
private static Logger LOG = Logger.getLogger( HmacHandler.class );
private boolean internal = false;
public HmacHandler( boolean b ) {
this.internal = b;
}
@Override
@SuppressWarnings( "deprecation" )
public void incomingMessage( ChannelHandlerContext ctx, MessageEvent event ) throws Exception {
if ( event.getMessage( ) instanceof MappingHttpRequest ) {
MappingHttpRequest httpRequest = ( MappingHttpRequest ) event.getMessage( );
Map<String, String> parameters = httpRequest.getParameters( );
ByteArrayOutputStream bos = new ByteArrayOutputStream( );
httpRequest.getContent( ).readBytes( bos, httpRequest.getContent( ).readableBytes( ) );
String blah = bos.toString( );
bos.close( );
if ( !parameters.containsKey( SecurityParameter.AWSAccessKeyId.toString( ) ) && !internal ) {
throw new AuthenticationException( "Missing required parameter: " + SecurityParameter.AWSAccessKeyId );
} else if ( internal ) {
parameters.put( SecurityParameter.AWSAccessKeyId.toString( ), Users.lookupUser( "admin" ).getQueryId( ) );
}
if ( !parameters.containsKey( SecurityParameter.Signature.toString( ) ) ) {
throw new AuthenticationException( "Missing required parameter: " + SecurityParameter.Signature );
}
// :: note we remove the sig :://
String sig = parameters.remove( SecurityParameter.Signature.toString( ) );
String sigVersion = parameters.get( RequiredQueryParams.SignatureVersion.toString( ) );
String sigMethod = parameters.get( SecurityParameter.SignatureMethod.toString( ) );
String verb = httpRequest.getMethod( ).getName( );
sigMethod = ( ( sigMethod == null ) ? "HMACSHA1" : sigMethod );
Hmac hmac = Hmac.valueOf( "HmacSHA" + sigMethod.substring( 7 ) );
String headerHost = httpRequest.getHeader( "Host" );
String servicePath = httpRequest.getServicePath( );
SecurityContext.getLoginContext( new HmacCredentials( httpRequest.getCorrelationId( ), sig, parameters, verb, servicePath, headerHost, Integer.valueOf( sigVersion ), hmac ) ).login( );
parameters.remove( RequiredQueryParams.SignatureVersion.toString( ) );
parameters.remove( SecurityParameter.SignatureMethod.toString( ) );
parameters.remove( SecurityParameter.AWSAccessKeyId.toString( ) );
}
}
@Override
public void outgoingMessage( ChannelHandlerContext ctx, MessageEvent event ) throws Exception {}
}